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@dependabot dependabot bot commented on behalf of github Nov 28, 2025

Updated Parquet.Net from 5.1.1 to 5.4.0.

Release notes

Sourced from Parquet.Net's releases.

5.4.0

Improvements

  • It's now possible to serialize nested lists (list of lists, List<List<T>>) in class serializer, by @​aloneguid in #​612. Thanks @​Vannevelj.
  • Support for implicit parquet lists in schema parser and serializer, by @​aloneguid and @​mukunku in #​681.
  • Added IAsyncEnumerable serializer with System.Linq.AsyncEnumerable, by @​Arithmomaniac in #​674.
  • All the documentation has been condensed and moved back to README file, making it easier to find and read, by @​aloneguid.

Bugs fixed

  • When encoding bool values, the results are now consistent, by @​Kevin-Ross-ECC in #​643.
  • ParquetRowGroupWriter.Dispose() will not throw exceptions as it conflicts with try/catch/finally ideology. You should call CompleteValidate after writing all columns instead. Thanks to @​rkarim-nnk in #​666.
  • Required struct members were always annotated as optional, by @​aloneguid in #​582.

5.3.0

  • new: added support for BYTE_STREAM_SPLIT encoding, by @​alex-harper in #​539.
  • new: DELTA_BINARY_PACKED is supported on more data types (short,ushort,ulong,uint), by @​ee-naveen and @​wickedmachinator in #​599.
  • imp: added cancellation token to ReadEntireRowGroupAsync for consistency with the rest of the API, by @​kiloOhm in #​647.
  • imp: added validation to prevent writing malformed Parquet files, by @​Kuinox in #​656.
  • imp: necessary fixes to get .NET 10 ready.
  • fix: DataPageHeaderV2.IsCompressed is defaulting to false on read even though the spec seems to say it should be true, by @​ngbrown in #​625.
  • fix: class deserialiser can handle pre-initialised dictionaries, by @​kiloOhm in #​651.
  • fix: add bounds check for pageSize in RleBitpackedHybridEncoder.Decode, by @​mlptownsend in #​662.
  • test: added DuckDB for integration tests (#​661 by @​aloneguid).

5.2.0

  • Fixed parsing empty byte arrays in #​616 by @​Kuinox.
  • Fixed ArgumentException "destination is too short" when reading a parquet file generated by DuckDB, by @​BMehlkop
    in #​636.
  • Exposed FieldId in DataField by @​Hrachkata in #​632.
  • Fixed class serialisation bug that didn't handle empty/null list of nullable type. By @​mrinal-thomas in #​630.
  • Handle decimals with no scale defined: DECIMAL(X, 0) by @​mukunku in #​602.
  • Fix dictionary serialisation issue when key is non-nullable in #​606 by @​AshishGupta1995.
  • Documentation fixes.
  • floor (experimental UI) is discontinued due to having massive performance issues with Avalonia. I don't think Avalonia is a suitable UI framework for low latency desktop applications.

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Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

---
updated-dependencies:
- dependency-name: Parquet.Net
  dependency-version: 5.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added .NET Pull requests that update .NET code dependencies Pull requests that update a dependency file labels Nov 28, 2025
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